Display screen or portion thereof with icon



FIG. 1 is a front view of a display screen or portion thereof with iconshowing my new design; and,

FIG. 2 is a front view, showing a second embodiment thereof.

The broken lines in the figures show a display screen or portionthereof, and form no part of the claimed design.

CLAIM The ornamental design for a display screen or portion thereof withicon, as shown and described.